---
title: "Free Heading Structure Checker"
description: "Analyze your HTML heading hierarchy (H1-H6). Find structure issues, missing headings, and ensure your content is properly organized for SEO and accessibility."
url: "https://skribra.com/tools/heading-structure-checker"
type: "tool"
---

# Free Heading Structure Checker

Analyze your HTML heading hierarchy (H1-H6). Find structure issues, missing headings, and ensure your content is properly organized for SEO and accessibility.

Free, no sign-up. The tool itself runs on the HTML page — this representation carries everything around it.

## Perfect Your Content Hierarchy

Proper heading structure helps both search engines and users understand your content. An H1 followed by an H4 is confusing. Our checker validates your [heading hierarchy](https://skribra.com/glossary/h1-tag) and identifies structural issues that hurt SEO and accessibility.

Want perfectly structured content every time? Skribra's AI-powered platform generates articles with proper heading hierarchies, ensuring logical flow and optimal structure for both search engines and readers.

## Who Benefits From a Heading Structure Checker?

Anyone publishing web content will find this tool essential for SEO and accessibility.

- **SEO Specialists** — Ensure content has proper heading hierarchy for better rankings.
- **Content Managers** — Review articles for proper structure before publishing.
- **Web Developers** — Validate heading structure during site audits and migrations.
- **Accessibility Specialists** — Ensure content meets WCAG heading requirements for screen readers.
- **Technical Writers** — Organize documentation with proper hierarchical structure.
- **Content Editors** — Quickly identify structural issues in submitted content.
- **WordPress Users** — Check that themes and content use headings correctly.
- **Agency Teams** — Audit client sites for heading structure issues.

## FAQ

### What is heading structure?

Heading structure refers to the hierarchy of HTML headings (H1-H6) in your content. H1 is the main title, H2s are major sections, H3s are subsections of H2s, and so on. Proper structure creates a logical outline of your content.

### Why does heading structure matter for SEO?

Search engines use headings to understand content hierarchy and topics. Proper structure helps Google identify your main topic (H1) and subtopics (H2-H6). Well-structured content tends to rank better for featured snippets and related searches.

### What are common heading structure mistakes?

Common issues: multiple H1s, skipping levels (H1 → H3), using headings for styling instead of structure, no H1 at all, headings in wrong order. These confuse search engines and screen readers about your content hierarchy.

### How many H1 tags should a page have?

Generally, one H1 per page. The H1 should be your main title/topic. While HTML5 technically allows multiple H1s in different sections, for SEO and clarity, one H1 is best practice. Use H2-H6 for all other headings.

### Does heading structure affect accessibility?

Yes, significantly. Screen reader users navigate by headings—they're like a table of contents for blind users. Skipping heading levels or using them incorrectly makes content difficult or impossible for these users to navigate.

### How do I fix heading structure issues?

Ensure you have exactly one H1 (your title). Follow it with H2s for main sections. Use H3s only under H2s, H4s only under H3s, etc. Never skip levels. If you need larger text without a heading, use CSS instead of heading tags.

## Related tools

- [Table of Contents Generator](https://skribra.com/tools/table-of-contents-generator): Generate TOC from headings in your content.
- [HTML to Markdown](https://skribra.com/tools/html-to-markdown): Convert HTML to Markdown format.
- [Markdown to HTML](https://skribra.com/tools/markdown-to-html): Convert Markdown to HTML format.
- [Schema Generator](https://skribra.com/tools/schema-generator): Generate structured data for rich search results.

## Machine-readable index

- HTML version of this page: https://skribra.com/tools/heading-structure-checker
- Site index for agents: https://skribra.com/llms.txt
- Sitemap: https://skribra.com/sitemap.xml
- Public REST API: https://skribra.com/api/v1
- OpenAPI specification: https://skribra.com/openapi.json